Development of a Three dimensional Skill-Analyzing System by means of "360 Degree Turning of a Motion Model" and Completion of a New Teaching Method Based upon It.

所有的身体运动，包括身体运动，都可以放在三维坐标中。近年来个人计算机的飞速发展使得图形的精确度和计算速度的提高成为可能，使得在显示器上绘制出更复杂的3D图形成为可能。这就是为什么我们试图开发一种新的技能分析系统，引入“单点透视变换”和“运动模型的360度旋转”，使实验数据的收集更容易，分析更精确。由于电子设备的发展，3D分析已经从棒状图像演变为表面模型，这对体育领域的3D分析做出了巨大贡献。本研究的创新之处在于，运动模型可以360度旋转，并且可以从任何方向旋转，这种观察方式已经被证明是有用的，特别是在运动中，形式和有效的动作被认为是美丽的。运动可以分为两种模式：从一个地方到另一个地方的运动和在现场或小范围内的运动。以前者的“滑雪”和后者的“高尔夫”为典型案例，在该系统下进行了实验，并对收集到的数据进行了分析，取得了较好的应用效果。

All the bodily motions, including physical motion, can be put into the three dimensional coordinates. Recent remarkable development of personal computers enabled more precise graphics and improvement of computing speed, which has made it possible to draw up more complicated 3D graphics on the display.That is why we authors, intending to make the gathering of experimental data easier and the analyzes more precise, tried to develop a new skill-analyzing system with the introduction of 'the single point perspective transformation' and ' 360 degree turning ofa motion model'. Thanks to the development of electronic equipment, 3D analyzes have now evolved form stick picture into surface models, which greatly contributed to the 3D analysis in the field of Athletics.The originality of this research consists in that a motion model can be turned around 360 degrees and its from any direction, and this way of observation has turned out to be use, especially in sports in which the beauty of from and effective movements are considered important. Motion can be classified into two patterns ; the movement from one place to another and that on the spot or in a small area. Picking up 'skiing' from the former and 'golf' from the latter as a model case, we experimented under this system with analyzing the data we gathered, and dould obtain a fair success as to the application of this system.